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Finding the Fourth Proportional to 89,123.80, 133,680.78 and 29,953.36

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Solution

The fourth proportional to 89,123.80, 133,680.78 and 29,953.36 is: 44,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,123.80 : 133,680.78 = 29,953.36 : x
  2. Step 2: Convert to fraction form
    89,123.80/133,680.78 = 29,953.36/x
  3. Step 3: Cross multiply
    89,123.80x = 133,680.78 × 29,953.36
  4. Step 4: Simplify right side
    89,123.80x = 4,004,188,528.42
  5. Step 5: Solve for x
    x = 4,004,188,528.42/89,123.80
  6. Step 6: Final answer
    x = 44,928.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.